Photo/Illutration The expected paths of Typhoon No. 6, left, and Typhoon No. 7 as of 9 a.m. on Aug. 8 (from the Japan Meteorological Agency website).

Typhoon No. 7 has formed over the seas south of Japan and is expected to move northward near the Ogasawara island chain as it develops, the Japan Meteorological Agency announced on Aug. 8. 

The agency said the typhoon may approach the Izu island chain by Aug. 13 after increasing in intensity. 

As of 9 a.m. on Aug. 8, Typhoon No. 7 was almost stagnant in the seas around Minami-Torishima island in the Ogasawara island chain. 

The central pressure is 1,000 hectopascals and the typhoon was packing a maximum wind speed of 64 kph and a maximum instantaneous wind speed of 90 kph.

At 9 a.m. on Aug. 11, 72 hours after the onset of the typhoon, it is expected to become a strong typhoon, with a central pressure of 960 hectopascals, maximum wind speeds of 126 kph near the center and maximum instantaneous wind speeds of 180 kph.

Within a radius of 390 kilometers, there is a risk of entering a storm zone with wind speeds of 90 kph or higher.